公开(公告)号：US20170346860A1

公开(公告)日：2017-11-30

申请号：US15680472

申请日：2017-08-18

Applicant: MEDIATEK INC.

Inventor： Yu-Syuan Jheng ,  Chien-Chun Huang-Fu ,  Nuan-Yu Yang

IPC: H04L29/06 ,  H04W36/00

CPC classification number: H04L65/1083 ,  H04L65/1016 ,  H04L65/1046 ,  H04L65/403 ,  H04L65/4038 ,  H04W36/0011 ,  H04W36/0022

Abstract: A method to manage call continuity in a network environment including a circuit-switched network and an IP multimedia subsystem (IMS) network is provided. A UE monitors one or more ongoing sessions in an IMS network, and the ongoing sessions contain at least one conference call. The UE detects a network-switching event for the UE to switch from the IMS network to a circuit-switched CS network. The UE then determines the one or more ongoing sessions within the IMS network to be released or transferred to the CS network. Finally, the UE performs a session transfer procedure for transferring the determined sessions.

公开(公告)号：US09661546B2

公开(公告)日：2017-05-23

申请号：US14607420

申请日：2015-01-28

Applicant: MEDIATEK INC.

Inventor： Per Johan Mikael Johansson ,  Chia-Chun Hsu ,  Yu-Syuan Jheng ,  Aimin Justin Sang

IPC: H04W4/00 ,  H04W36/30 ,  H04W84/12 ,  H04W36/14

CPC classification number: H04W36/30 ,  H04W28/08 ,  H04W36/14 ,  H04W36/22 ,  H04W84/12

Abstract: A method of offload selection for a UE to select between 3GPP RAT and WLAN cell is provided. The UE receives configuration information that applies to selecting WLAN or 3GPP radio access technology (RAT). The UE determines if the UE may perform WLAN offload by evaluating 3GPP radio access network (RAN) conditions where at least one RAN condition is related to a radio signal strength or a radio signal quality in 3GPP RAT. The UE then determines if there is at least one suitable WLAN cell by evaluating WLAN conditions. The UE also determines if there is candidate traffic for WLAN offload. Finally, the UE steers the determined traffic to WLAN if the UE may perform WLAN offload and if there is at least one suitable WLAN cell. Otherwise, the UE steers the determined traffic to 3GPP RAT.

公开(公告)号：US09516591B2

公开(公告)日：2016-12-06

申请号：US13896591

申请日：2013-05-17

Applicant: MEDIATEK, INC.

Inventor： Yu-Syuan Jheng ,  Chien-Chun Huang-Fu ,  Chia-Ming Chou

IPC: H04W52/02 ,  H04W28/02 ,  H04W28/12 ,  H04W52/14 ,  H04W52/28

CPC classification number: H04W52/0212 ,  H04W28/0221 ,  H04W28/0273 ,  H04W28/12 ,  H04W52/0216 ,  H04W52/0258 ,  H04W52/146 ,  H04W52/281 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/21

Abstract: Methods for enhanced UE data transmission for power consumption optimization are disclosed. A UE detects UE conditions and determines a UE traffic characteristic. The UE performs power consumption optimization based on the traffic characteristic. In one novel aspect, based on the UE condition, the UE determines that the traffic characteristic is low priority traffic or mobile originated only traffic. In one embodiment, the UE aligns prescheduled low priority data transmission with mobility management messages, or group multiple low priority prescheduled data transmission together. In another embodiment, the UE reduces NAS retry process upon detecting application triggered low priority traffic. In another embodiment, the UE turns off RF module until next data transmission for MO only traffic. In another novel aspect, the UE detects and sends UE conditions to the network. The network determines a UE traffic characteristic and performs power consumption optimization accordingly.

Abstract translation: 公开了用于功率消耗优化的增强的UE数据传输的方法。 UE检测UE条件并确定UE业务特性。 UE根据业务特性进行功耗优化。 在一个新颖的方面，基于UE条件，UE确定业务特性是低优先级业务或移动发起的业务。 在一个实施例中，UE将预调节的低优先级数据传输与移动性管理消息对齐，或者将多个低优先级预先调度的数据传输组合在一起。 在另一个实施例中，UE在检测到应用触发的低优先级业务时，减少NAS重试过程。 在另一个实施例中，UE关闭RF模块，直到下一次数据传输为MO仅流量。 在另一个新颖的方面，UE检测并向网络发送UE条件。 网络确定UE流量特性并相应地执行功耗优化。

公开(公告)号：US20160219470A1

公开(公告)日：2016-07-28

申请号：US15008236

申请日：2016-01-27

Applicant: MEDIATEK INC.

Inventor： Yu-Syuan Jheng ,  Pavan Santhana Krishna Nuggehalli ,  Chien-Chun Huang-Fu

IPC: H04W36/00 ,  H04W72/04 ,  H04W76/02

CPC classification number: H04W36/0083 ,  H04W24/02 ,  H04W24/08 ,  H04W24/10 ,  H04W28/085 ,  H04W28/12 ,  H04W36/00 ,  H04W36/14 ,  H04W36/165 ,  H04W36/22 ,  H04W76/16 ,  H04W84/12 ,  H04W88/06

Abstract: Methods for LTE-WLAN interworking control and management are proposed. In one novel aspect, a terminal equipment (TE) can use an AT command to query the WLAN offloadability of a packet data network (PDN) connection. A mobile termination (MT) can store the WLAN offloadability indication in its memory and return the value to TE upon receiving the AT command. In one example, a new field can be added to an existing AT command.

Abstract translation: 提出了LTE-WLAN互通控制与管理方法。 在一个新颖的方面，终端设备（TE）可以使用AT命令来查询分组数据网络（PDN）连接的WLAN脱离能力。 移动终端（MT）可以将WLAN卸载能力指示存储在其存储器中，并在接收到AT命令时将该值返回给TE。 在一个示例中，可以将新字段添加到现有的AT命令。

公开(公告)号：US20150264741A1

公开(公告)日：2015-09-17

申请号：US14644443

申请日：2015-03-11

Applicant: MEDIATEK INC.

Inventor： Yu-Syuan Jheng ,  Chien-Chun Huang-Fu ,  Hung-Lin Chang ,  Yuan-Chieh Lin

IPC: H04W76/06 ,  H04W36/00 ,  H04W76/04 ,  H04W24/10 ,  H04W36/14

CPC classification number: H04W76/38 ,  H04W36/0066 ,  H04W76/27

Abstract: Methods and apparatus are provided to reduce service interruption for intra-RAT and inter-RAT handover procedures. The UE performs a NAS signaling procedure via a NAS signaling connection in a mobile communication network. The UE monitors a radio resource status and determines whether a radio bearer has been or is being established for a RRC connection for data transmission. The UE determines whether to release the NAS signaling connection after completing the NAS signaling procedure based on whether the radio bearer has been established. In one embodiment, the UE monitors a radio resource status and determines whether a radio bearer has been established for a RRC connection for data transmission. The UE determines whether to start a timer upon completing the NAS signaling procedure based on whether the radio bearer has been or is being established.

Abstract translation: 提供了用于减少RAT内和RAT间切换过程的业务中断的方法和装置。 UE通过移动通信网络中的NAS信令连接执行NAS信令过程。 UE监视无线电资源状态，并确定无线电承载是否已建立用于数据传输的RRC连接。 UE根据无线承载建立完成NAS信令过程，确定是否释放NAS信令连接。 在一个实施例中，UE监视无线电资源状态，并确定是否已建立无线电承载用于数据传输的RRC连接。 UE根据无线承载是否已经建立完成NAS信令过程，确定是否启动定时器。

公开(公告)号：US20150257178A1

公开(公告)日：2015-09-10

申请号：US14198892

申请日：2014-03-06

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Huang-Fu ,  Yu-Syuan Jheng ,  Wei-Chiang Peng ,  Chia-Hung Tsai ,  Yih-Shen Chen

IPC: H04W76/02 ,  H04W72/04

CPC classification number: H04W76/11 ,  H04L65/1006 ,  H04L65/103 ,  H04L65/104 ,  H04L65/1069 ,  H04L65/1096 ,  H04L65/80

Abstract: Methods and apparatus are provided for a voice over LTE system to shorten the call set up time. In one novel aspect, the mobile origination (MO) UE starts the UE-initiated dedicated resource allocation before receiving any responses from the remote UE. In another embodiment, the mobile termination (MT) UE starts the UE-initiated dedicated resource allocation upon receiving the INVITE from the remote UE. In one embodiment, the UE adjusts the timeout value based on the PLMN information in its PLMN database. The timeout value can be set to be zero if early reservation is allowed. Upon timer expires, the UE starts UE-initiated dedicated resource allocation. In one novel aspect, the MO UE retrieves the codec information of a remote UE from its peer profile information database and uses a matching codec in its INVITE message. In another embodiment, the MT MO includes the SDP answer in its 180 RINGING message.

Abstract translation: 为LTE系统的语音提供方法和装置，以缩短呼叫建立时间。 在一个新颖的方面，移动发起（MO）UE在接收到来自远程UE的任何响应之前启动UE发起的专用资源分配。 在另一个实施例中，移动终端（MT）UE在从远程UE接收到INVITE时启动UE发起的专用资源分配。 在一个实施例中，UE基于其PLMN数据库中的PLMN信息来调整超时值。 如果允许提前预约，超时值可以设置为零。 定时器超时后，UE启动UE发起的专用资源分配。 在一个新颖的方面，MO UE从其对等体简档信息数据库中检索远程UE的编解码器信息，并在其INVITE消息中使用匹配的编解码器。 在另一个实施例中，MT MO包括其180RINGING消息中的SDP应答。

公开(公告)号：US20150215839A1

公开(公告)日：2015-07-30

申请号：US14607420

申请日：2015-01-28

Applicant: MEDIATEK INC.

Inventor： Per Johan Mikael Johansson ,  Chia-Chun Hsu ,  Yu-Syuan Jheng ,  Aimin Justin Sang

IPC: H04W36/30

CPC classification number: H04W36/30 ,  H04W28/08 ,  H04W36/14 ,  H04W36/22 ,  H04W84/12

Abstract: A method of offload selection for a UE to select between 3GPP RAT and WLAN cell is provided. The UE receives configuration information that applies to selecting WLAN or 3GPP radio access technology (RAT). The UE determines if the UE may perform WLAN offload by evaluating 3GPP radio access network (RAN) conditions where at least one RAN condition is related to a radio signal strength or a radio signal quality in 3GPP RAT. The UE then determines if there is at least one suitable WLAN cell by evaluating WLAN conditions. The UE also determines if there is candidate traffic for WLAN offload. Finally, the UE steers the determined traffic to WLAN if the UE may perform WLAN offload and if there is at least one suitable WLAN cell. Otherwise, the UE steers the determined traffic to 3GPP RAT.

Abstract translation: 提供了一种用于UE在3GPP RAT和WLAN小区之间进行选择的卸载选择的方法。 UE接收适用于选择WLAN或3GPP无线电接入技术（RAT）的配置信息。 UE通过评估其中至少一个RAN条件与3GPP RAT中的无线电信号强度或无线电信号质量相关的3GPP无线电接入网络（RAN）条件来确定UE是否可以执行WLAN卸载。 然后，UE通过评估WLAN条件来确定是否存在至少一个合适的WLAN小区。 UE还确定是否存在用于WLAN卸载的候选业务。 最后，如果UE可以执行WLAN卸载并且如果存在至少一个合适的WLAN小区，则UE将所确定的流量引导到WLAN。 否则，UE将确定的业务引导到3GPP RAT。

公开(公告)号：US08995989B2

公开(公告)日：2015-03-31

申请号：US13898911

申请日：2013-05-21

Applicant: Mediatek, Inc.

Inventor： Yu-Syuan Jheng ,  Hung-Lin Chang

IPC: H04W48/18 ,  H04W48/02

CPC classification number: H04W48/18 ,  H04W48/02

Abstract: A method of applying a network forbidden list for enhanced service recovery in mobile communication networks is provided. In a first embodiment, upon receiving an error cause for a RAT in a selected network, a UE stores a PLMN ID, the RAT information, and the error cause as an entry in the forbidden list. The UE will not select to the RAT of the network stored in the forbidden list until the PLMN/RAT entry is removed from the forbidden list. In a second embodiment, upon receiving an error cause in a selected network, a UE stores a PLMN ID, the error cause, and a timer value as an entry in the forbidden list. The UE will not select to the network stored in the forbidden list until the timer associated with the PLMN ID is expired.

Abstract translation: 提供了一种在移动通信网络中应用用于增强业务恢复的网络禁止列表的方法。 在第一实施例中，UE在接收到所选择的网络中的RAT的错误原因时，将PLMN ID，RAT信息和错误原因作为禁止列表中的条目存储。 在不被禁止的列表中删除PLMN / RAT条目之前，UE不会选择存储在禁止列表中的网络的RAT。 在第二实施例中，在接收到所选择的网络中的错误原因之后，UE将PLMN ID，错误原因和定时器值存储为禁止列表中的条目。 直到与PLMN ID相关联的定时器到期，UE将不会选择存储在禁止列表中的网络。

公开(公告)号：US20140286222A1

公开(公告)日：2014-09-25

申请号：US14221631

申请日：2014-03-21

Applicant: MEDIATEK INC.

Inventor： Chia-Hao Yu ,  Chia-Chun Hsu ,  Yih-Shen Chen ,  Chein-Chun Huang-Fu ,  Yu-Syuan Jheng ,  Chia-Hung Tsai

IPC: H04W4/08 ,  H04W4/10

CPC classification number: H04W4/08 ,  H04L5/0037 ,  H04L12/185 ,  H04L12/1886 ,  H04W4/06 ,  H04W4/10 ,  H04W24/08 ,  H04W36/0083 ,  H04W36/08 ,  H04W36/30 ,  H04W36/32 ,  H04W72/00 ,  H04W72/005 ,  H04W72/121 ,  H04W74/006 ,  H04W76/40

Abstract: A method of supporting group communication over LTE MBMS is provided. A UE first establishes a unicast Evolved Packet Service (EPS) bearer in an LTE network for group communication. The UE belongs to a communication group having a communication group ID. The UE receives access information from the network for monitoring downlink (DL) multicast traffic of the DL group communication based on a multicast decision. The UE is then ready for monitoring a multicast Multimedia Broadcast Multicast Service (MBMS) bearer for receiving the DL multicast traffic. The multicast MBMS bearer is associated with a Temporary Mobile Group Identifier (TMGI), and wherein the TMGI is associated with the communication group ID. In one embodiment, the access information comprises mapping information between the TMGI and the communication group ID.

Abstract translation: 提供了一种通过LTE MBMS支持群组通信的方法。 UE首先在用于组通信的LTE网络中建立单播演进分组业务（EPS）承载。 UE属于具有通信组ID的通信组。 UE从网络接收基于多播决定的DL组通信的下行链路（DL）组播流量的接入信息。 然后，UE准备监视用于接收DL多播业务的组播多媒体广播多播服务（MBMS）承载。 组播MBMS承载与临时移动组标识符（TMGI）相关联，并且其中TMGI与通信组ID相关联。 在一个实施例中，访问信息包括TMGI和通信组ID之间的映射信息。